treewide: fix clippy::use_self

This is a non-default nursery lint.

Author: newAM

src/fnv.rs

@@ -14,7 +14,7 @@ pub struct Hasher {
 
 impl Default for Hasher {
     fn default() -> Self {
-        Hasher { state: BASIS }
+        Self { state: BASIS }
     }
 }
 

src/lib.rs

@@ -48,6 +48,7 @@
 
 #![deny(missing_docs)]
 #![deny(warnings)]
+#![warn(clippy::use_self)]
 #![no_std]
 
 use core::fmt;
@@ -72,20 +73,20 @@ pub struct BuildHasherDefault<H> {
 
 impl<H> Default for BuildHasherDefault<H> {
     fn default() -> Self {
-        BuildHasherDefault {
+        Self {
             _marker: PhantomData,
         }
     }
 }
 
 impl<H> Clone for BuildHasherDefault<H> {
     fn clone(&self) -> Self {
-        BuildHasherDefault::default()
+        Self::default()
     }
 }
 
 impl<H> PartialEq for BuildHasherDefault<H> {
-    fn eq(&self, _other: &BuildHasherDefault<H>) -> bool {
+    fn eq(&self, _other: &Self) -> bool {
         true
     }
 }
@@ -101,7 +102,7 @@ impl<H> fmt::Debug for BuildHasherDefault<H> {
 impl<H> BuildHasherDefault<H> {
     /// `const` constructor
     pub const fn new() -> Self {
-        BuildHasherDefault {
+        Self {
             _marker: PhantomData,
         }
     }

src/murmur3.rs

@@ -30,21 +30,21 @@ enum Index {
 impl Index {
     fn usize(&self) -> usize {
         match *self {
-            Index::_0 => 0,
-            Index::_1 => 1,
-            Index::_2 => 2,
-            Index::_3 => 3,
+            Self::_0 => 0,
+            Self::_1 => 1,
+            Self::_2 => 2,
+            Self::_3 => 3,
         }
     }
 }
 
 impl From<usize> for Index {
     fn from(x: usize) -> Self {
         match x % 4 {
-            0 => Index::_0,
-            1 => Index::_1,
-            2 => Index::_2,
-            3 => Index::_3,
+            0 => Self::_0,
+            1 => Self::_1,
+            2 => Self::_2,
+            3 => Self::_3,
             _ => unreachable!(),
         }
     }
@@ -75,7 +75,7 @@ impl Hasher {
 impl Default for Hasher {
     #[allow(deprecated)]
     fn default() -> Self {
-        Hasher {
+        Self {
             buf: Buffer {
                 bytes: MaybeUninit::uninit(),
             },